Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 
B. 
C. 
D. 2
Answer: B
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Factor the expression.8g - rn - 8n + rg
A. (8 - n)(g + r) B. (8 + n)(g - r) C. (g - n)(8 + r) D. (g - n)(8 - r) E. (g + n)(8 - r)
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = ln (9x + 3y)
A. Domain: all points in the xy-plane satisfying 9x + 3y > 0; range: all real numbers; level curves: lines 
B. Domain: all points in the xy-plane satisfying 9x + 3y > 0; range: real numbers z ? 0; level curves: lines 
C. Domain: all points in the xy-plane satisfying 9x + 3y ? 0; range: all real numbers; level curves: lines 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
Write the decimal number in words.151.19
A. one hundred fifty-one and nineteen thousandths B. one hundred and fifty-one and nineteen tenths C. one hundred fifty-one and nineteen hundredths D. one hundred and fifty-one and nineteen hundredths
Use a tree diagram to answer the question.A family has 4 children. Using a tree diagram that shows how many ways the children could have been born, from first born to last born, determine how many ways the family could have had 2 boys and 2 girls.
A. 8 B. 1 C. 5 D. 6